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Is this the secret to 'smart' aging? Elle 'The Body' Macpherson, 52, says she can no longer 'rely on genetics' to maintain her beauty... and credits alkaline diet

But Elle Macpherson says her natural beauty is harder to maintain the older she gets.

In an Instagram post to promote her supplement range on Saturday, the mother-of-two said she needs to make more conscious eating choices to maintain her glowing complexion and stunning model physique.

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Green and clean! In a motivational post shared to Instagram on Saturday, Elle Macpherson, 52, told her followers that her natural beauty is harder to maintain the older she gets and that she has now embraced an alkaline diet

'They ask me the smart way to age. When I was younger, I was able to rely on genetics,' she began.